INFO: task :9217 can't die for more than 143 seconds.
                R  running task    27784  9217   8919 0x00004006
Call Trace:

Showing all locks held in the system:
1 lock held by khungtaskd/1085:
 #0: ffffffff88faccc0 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 kernel/locking/lockdep.c:5334
1 lock held by rsyslogd/8788:
 #0: ffff8880a616a8a0 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 fs/file.c:801
2 locks held by getty/8878:
 #0: ffff8880a77b5090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f252e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156
2 locks held by getty/8879:
 #0: ffff88809a318090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f3f2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156
2 locks held by getty/8880:
 #0: ffff8880a8f6a090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f1d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156
2 locks held by getty/8881:
 #0: ffff888097758090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f432e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156
2 locks held by getty/8882:
 #0: ffff88809988c090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f3b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156
2 locks held by getty/8883:
 #0: ffff8880a02c8090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f312e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156
2 locks held by getty/8884:
 #0: ffff88808f8c5090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:340
 #1: ffffc90005f112e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 drivers/tty/n_tty.c:2156

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 1085 Comm: khungtaskd Not tainted 5.4.0-rc7-next-20191115 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x197/0x210 lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x70/0xb2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x23b/0x28b lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:269 [inline]
 watchdog+0xc8f/0x1350 kernel/hung_task.c:353
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9217 Comm:  Not tainted 5.4.0-rc7-next-20191115 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:752 [inline]
RIP: 0010:lock_is_held_type+0x254/0x320 kernel/locking/lockdep.c:4524
Code: 83 c0 03 38 d0 7c 08 84 d2 0f 85 d3 00 00 00 48 c7 c0 58 2e f3 88 48 ba 00 00 00 00 00 fc ff df c7 83 9c 08 00 00 00 00 00 00 <48> c1 e8 03 80 3c 10 00 0f 85 88 00 00 00 48 83 3d 7e db 99 07 00
RSP: 0018:ffff8880ae809ef0 EFLAGS: 00000046
RAX: ffffffff88f32e58 RBX: ffff88809aa8e6c0 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: ffff88809aa8ef5c
RBP: ffff8880ae809f38 R08: ffff88809aa8e6c0 R09: ffffed1015d0703d
R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff88facc40 R15: 0000000000000000
FS:  00007f7da08fd700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 0000000095454000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:361 [inline]
 rcu_read_lock_sched_held+0x9c/0xd0 kernel/rcu/update.c:122
 trace_local_timer_exit arch/x86/include/asm/trace/irq_vectors.h:56 [inline]
 smp_apic_timer_interrupt+0x476/0x610 arch/x86/kernel/apic/apic.c:1136
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829
 </IRQ>
RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:26 [inline]
RIP: 0010:irq_work_sync+0xd3/0x1d0 kernel/irq_work.c:193
Code: f5 ff 4d 89 e6 4d 89 e5 48 b8 00 00 00 00 00 fc ff df 49 c1 ee 03 41 83 e5 07 49 01 c6 41 83 c5 03 eb 07 e8 7f 87 f5 ff f3 90 <e8> 78 87 f5 ff be 04 00 00 00 4c 89 e7 e8 ab a6 31 00 41 0f b6 06
RSP: 0018:ffff8880553e7c08 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000040000 RBX: 0000000000000002 RCX: ffffc9000a580000
RDX: 0000000000040000 RSI: ffffffff817e51c1 RDI: 0000000000000005
RBP: ffff8880553e7c28 R08: ffff88809aa8e6c0 R09: ffffed101244a282
R10: ffffed101244a281 R11: ffff88809225140b R12: ffff888092251408
R13: 0000000000000003 R14: ffffed101244a281 R15: ffff8880553e7cc8
 _free_event+0x89/0x13b0 kernel/events/core.c:4584
 put_event+0x47/0x60 kernel/events/core.c:4709
 perf_event_release_kernel+0x6d5/0xd70 kernel/events/core.c:4824
 perf_release+0x37/0x50 kernel/events/core.c:4834
 __fput+0x2ff/0x890 fs/file_table.c:280
 ____fput+0x16/0x20 fs/file_table.c:313
 task_work_run+0x145/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x316/0x380 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:278 [inline]
 do_syscall_64+0x676/0x790 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a639
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f7da08fcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: 0000000020000000 RBX: 0000000000000006 RCX: 000000000045a639
RDX: 0000000000010006 RSI: 0000000000003000 RDI: 0000000020000000
RBP: 000000000075bfc8 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000080011 R11: 0000000000000246 R12: 00007f7da08fd6d4
R13: 00000000004c705c R14: 00000000004dc7f8 R15: 00000000ffffffff